40CrMoV4-6, 1.7711, ASTM SA193 / A193 B16 - Steel for high temperature boilers and high temperature steel for bolts, nuts, motor and machine components such as crankshafts, axles, spindles and gears. according to EN 10269.
| Grade | Chemical composition WT % | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Cr | Mo | V | Al | |
| 40CrMoV4-6, 40CrMoV4-7, 1.7711 | 0.36 - 0.44 | 0.45 - 0.55 | Max 0.4 | Max 0.025 | Max 0.030 | 0.9 - 1.2 | 0.50 - 0.65 | 0.25 - 0.35 | Max 0.015 |
| ASTM SA193/A193 Gr B16 | 0.36 - 0.47 | 0.45 - 0.70 | 0.15 - 0.35 | Max 0.035 | Max 0.040 | 0.80 - 1.15 | 0.50 - 0.65 | 0.25 - 0.35 | Max 0.015 |
| UNS K14072 | 0.36 - 0.44 | 0.45 - 0.70 | 0.15 - 0.35 | Max 0.040 | Max 0.040 | 0.80 - 1.15 | 0.50 - 0.65 | 0.25 - 0.35 | Max 0.015 |
Tensile strength, Rm 850-1000 MPa
Yield strength, Rp0,2: >640 MPa
Elongation, A: >14% Necking,
Z: >45% Impact strength
KV: > 25J Hardness: 250-300 HB
| Temperatures (℃) | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| p0,2 (MPa) | Min 630 | Min 610 | Min 590 | Min 575 | Min 550 | Min 540 | Min 525 | Min 507 | Min 480 | Min 430 | Min 365 | Min 268 |
Annealing at a temperature of 680 - 730℃
Normalization at a temperature of 880 - 900℃
Annealing at a temperature of 830℃
Annealing at a temperature of 900 - 930℃
Normalization at a temperature of 650 - 720℃
Stress relief annealing after hardening at a temperature of 200℃
Stress relief annealing at a temperature 50℃ lower than tempering
Good
| Grade | Shape | Dimensionmm | Qty.kg |
|---|---|---|---|
| 40CrMoV4-6 | Round bar | Φ55 | 1850 |
| 40CrMoV4-6 | Round bar | Φ70 | 5137 |
Steel grade
Special steel